TITTER

Nervously restrained laugh (6)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 16,616 — 2023-08-07 23:00:53
  15D: Giggle (6)
• Quick crossword No 15,267 — 2019-04-12 23:00:03
  13A: Nervously restrained laugh (6)